1125916723 has 6 divisors (see below), whose sum is σ = 1176998564. Its totient is φ = 1076963316.

The previous prime is 1125916717. The next prime is 1125916751. The reversal of 1125916723 is 3276195211.

It is a de Polignac number, because none of the positive numbers 2^k-1125916723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125916423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1063665 + ... + 1064722.

Almost surely, 2^1125916723 is an apocalyptic number.

1125916723 is a deficient number, since it is larger than the sum of its proper divisors (51081841).

1125916723 is an equidigital number, since it uses as much as digits as its factorization.

1125916723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128433 (or 2128410 counting only the distinct ones).

The product of its digits is 22680, while the sum is 37.

The square root of 1125916723 is about 33554.6825793361. The cubic root of 1125916723 is about 1040.3243327070.

The spelling of 1125916723 in words is "one billion, one hundred twenty-five million, nine hundred sixteen thousand, seven hundred twenty-three".